Question

Дорога из села проходит через рабочий посёлок.Из села в город вышла легковая автомашина со скоростью 1,5 км\ч.в тоже самое время из рабочего посёлка в город вышла грузовая автомашина со скоростью 1 км\мин .через 20 мин легковая автомашина догнала грузовую.Найдите расстояние то села до рабочего посёлка.ответ

Answer 1

Переводим в одну единицу измерений   км/мин
1,5 км/ч = 0,03 км/мин
Движение в одном направлении - скорости складываются

S=( 0,03 + 1) х 20 = 20,6 км.

Answer 2

Calculation of Distance

To find the distance between the village and the industrial settlement, we need to consider the speeds of the two vehicles and the time it took for the car to catch up to the truck.

Given: - Speed of the car = 1.5 km/h - Speed of the truck = 1 km/min - Time taken for the car to catch up to the truck = 20 minutes

To calculate the distance, we can use the formula:

Distance = Speed x Time

First, let's convert the speed of the truck from km/min to km/h: - 1 km/min = 60 km/h

Now we can calculate the distance:

1. Distance covered by the car in 20 minutes: - Speed of the car = 1.5 km/h - Time taken = 20 minutes = 20/60 hours = 1/3 hours - Distance covered by the car = Speed x Time = 1.5 km/h x 1/3 hours = 0.5 km

2. Distance covered by the truck in 20 minutes: - Speed of the truck = 60 km/h - Time taken = 20 minutes = 20/60 hours = 1/3 hours - Distance covered by the truck = Speed x Time = 60 km/h x 1/3 hours = 20 km

Since the car caught up to the truck, the distance covered by both vehicles must be the same. Therefore, the distance between the village and the industrial settlement is 20 km.

Please note that the sources provided did not have specific information related to this question. The calculation is based on the given information and basic mathematical principles.